Tap an untapped Cephalid you control: Tap target permanent.

{U}{U}{U}: Tap all creatures without flying.

As Adaptive Automaton enters the battlefield, choose a creature type.

Adaptive Automaton is the chosen type in addition to its other types.

Other creatures you control of the chosen type get +1/+1.

Return all attacking creatures to their owner's hand.

For each attacking creature, its owner puts it on the top or bottom of their library.

Instant and sorcery spells cost {2} less to cast.

Tap an untapped Wizard you control: Draw a card.

Scry 2, then draw two cards.

Foretell {1}{U} (During your turn, you may pay {2} and exile this card from your hand face down. Cast it on a later turn for its foretell cost.)

As Brass Herald enters the battlefield, choose a creature type.

When Brass Herald enters the battlefield, reveal the top four cards of your library. Put all creature cards of the chosen type revealed this way into your hand and the rest on the bottom of your library in any order.

Creatures of the chosen type get +1/+1.

Create a token that's a copy of target creature you control.

Flashback {5}{U}{U} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Until end of turn, creatures you control have base power and toughness X/X, where X is the number of cards you own in exile and in your graveyard that are instant cards, are sorcery cards, and/or have an Adventure.

Flying

Protection from red (This creature can't be blocked, targeted, dealt damage, enchanted, or equipped by anything red.)

Sacrifice Cerulean Drake: Counter target spell that targets you.

Draw two cards. Then discard a card unless you attacked this turn.

Flying

Whenever you cast a noncreature spell, incubate X, where X is that spell's mana value. (Create an Incubator token with X +1/+1 counters on it and "{2}: Transform this artifact." It transforms into a 0/0 Phyrexian artifact creature.)

Surveil 1. (Look at the top card of your library. You may put it into your graveyard.)

Draw a card.

Target player draws two cards.

Flashback--{1}{U}, Pay 3 life. (You may cast this card from your graveyard for its flashback cost. Then exile it.)

As Diamond Mare enters the battlefield, choose a color.

Whenever you cast a spell of the chosen color, you gain 1 life.

Exile up to two target creatures you control, then return those cards to the battlefield under their owner's control.

When Elite Arcanist enters the battlefield, you may exile an instant card from your hand.

{X}, {T}: Copy the exiled card. You may cast the copy without paying its mana cost. X is the mana value of the exiled card.

You may return two Islands you control to their owner's hand rather than pay this spell's mana cost.

Tap all creatures.

Draw a card.

Splice onto instant or sorcery {2}{U} (As you cast an instant or sorcery spell, you may reveal this card from your hand and pay its splice cost. If you do, add this card's effects to that spell.)

Reveal the top five cards of your library. An opponent separates those cards into two piles. Put one pile into your hand and the other into your graveyard.

Return all noncreature, nonland permanents to their owners' hands.

Return target instant or sorcery card from your graveyard to your hand. Exile Flood of Recollection.

{U}{U}, Return two Islands you control to their owner's hand: Return target creature to its owner's hand.

Draw a card for each Island you control.

Draw a card for each Island you control, then discard two cards.

You may discard an Island card and another card rather than pay this spell's mana cost.

Counter target spell.

Instant and sorcery spells you cast cost {1} less to cast for each time you've cast a commander from the command zone this game.

Draw two cards, then discard two cards. Untap up to three lands.

Whenever you cast an instant or sorcery spell from your hand, you may cast up to one target card of the other type from your graveyard. If a spell cast from your graveyard this way would be put into your graveyard, exile it instead.

Choose a Background (You can have a Background as a second commander.)

Exile two target artifacts, creatures, and/or lands you control, then return those cards to the battlefield under your control.

Replicate {U} (When you cast this spell, copy it for each time you paid its replicate cost. You may choose new targets for the copies.)

Tap target permanent.

As Hall of Triumph enters the battlefield, choose a color.

Creatures you control of the chosen color get +1/+1.

Flying

Haughty Djinn's power is equal to the number of instant and sorcery cards in your graveyard.

Instant and sorcery spells you cast cost {1} less to cast.

As Heraldic Banner enters the battlefield, choose a color.

Creatures you control of the chosen color get +1/+0.

{T}: Add one mana of the chosen color.

As Icon of Ancestry enters the battlefield, choose a creature type.

Creatures you control of the chosen type get +1/+1.

{3}, {T}: Look at the top three cards of your library. You may reveal a creature card of the chosen type from among them and put it into your hand. Put the rest on the bottom of your library in a random order.

Look at the top four cards of your library. Put one of them into your hand and the rest on the bottom of your library in any order.

Suspend 3--{1}{U}{U} (Rather than cast this card from your hand, pay {1}{U}{U} and exile it with three time counters on it. At the beginning of your upkeep, remove a time counter. When the last is removed, cast it without paying its mana cost.)

Search target opponent's library for a creature card and put that card onto the battlefield under your control. Then that player shuffles.

Flash

As Instruments of War enters the battlefield, choose a creature type.

Creatures you control of the chosen type get +1/+1.

(As a Siege enters, choose an opponent to protect it. You and others can attack it. When it's defeated, exile it, then cast it transformed.)

When Invasion of Arcavios enters the battlefield, search your library, graveyard, and/or outside the game for an instant or sorcery card you own, reveal it, and put it into your hand. If you search your library this way, shuffle.

Whenever you cast an instant or sorcery spell from your hand, you may copy that spell. You may choose new targets for the copy.

({T}: Add {U}.)

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({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

Instant and sorcery spells you cast cost {1} less to cast.

Whenever you cast an instant or sorcery spell, scry 1. (Look at the top card of your library. You may put that card on the bottom of your library.)

Whenever a player casts a blue spell, you may gain 1 life.

Flying

Lieutenant -- At the beginning of combat on your turn, if you control your commander, draw a card.

Gain control of X target creatures and/or planeswalkers.

Whenever you cast an instant or sorcery spell, create an X/X colorless Construct artifact creature token, where X is that spell's mana value.

{3}{U}{U}, Exile Metallurgic Summonings: Return all instant and sorcery cards from your graveyard to your hand. Activate only if you control six or more artifacts.

Whenever you cast an instant or sorcery spell, create a 1/1 blue Bird Illusion creature token with flying.

Scry 1.

Draw a card.

Surveil 3. (Look at the top three cards of your library, then put any number of them into your graveyard and the rest on top of your library in any order.)

Flashback {1}{U} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

As Paradise Plume enters the battlefield, choose a color.

Whenever a player casts a spell of the chosen color, you may gain 1 life.

{T}: Add one mana of the chosen color.

Look at target player's hand.

Draw a card.

Look at the top three cards of target player's library, then put them back in any order. You may have that player shuffle.

Draw a card at the beginning of the next turn's upkeep.

Flying

Whenever you cast an instant or sorcery spell, scry 1. (Look at the top card of your library. You may put that card on the bottom of your library.)

As Prism Ring enters the battlefield, choose a color.

Whenever you cast a spell of the chosen color, you gain 1 life.

Untap all creatures you control and all creatures target opponent controls. You and that opponent each gain control of all creatures the other controls until end of turn. Those creatures gain haste until end of turn.

Create a tapped 2/2 black Zombie creature token for each instant and sorcery card in your graveyard.

Return all nonland permanents target player controls to their owner's hand.

Whenever a player casts an instant or sorcery spell, exile it instead of putting it into a graveyard as it resolves.

{X}, {T}, Sacrifice Rod of Absorption: You may cast any number of spells from among cards exiled with Rod of Absorption with total mana value X or less without paying their mana costs.

When Scourge of Fleets enters the battlefield, return each creature your opponents control with toughness X or less to its owner's hand, where X is the number of Islands you control.

Whenever you cast a noncreature spell, put a lore counter on Scroll of the Masters.

{3}, {T}: Target creature you control gets +1/+1 until end of turn for each lore counter on Scroll of the Masters.

Flying

Whenever you cast a noncreature spell, put an oil counter on Serum Sovereign.

{U}, Remove an oil counter from Serum Sovereign: Draw a card, then scry 2.

Draw a card. Scry 2.

Whenever you cast a noncreature spell, create an X/X blue Shark creature token with flying, where X is that spell's mana value.

Cycling {X}{1}{U} ({X}{1}{U}, Discard this card: Draw a card.)

When you cycle Shark Typhoon, create an X/X blue Shark creature token with flying.

Flying

Whenever Siani, Eye of the Storm attacks, scry X, where X is the number of attacking creatures with flying.

Partner (You can have two commanders if both have partner.)

Whenever you cast a noncreature spell, you may pay {1}{U}. If you do, create a 2/2 blue Djinn Monk creature token with flying.

Flying

Whenever you cast a noncreature spell, creatures you control get +1/+1 until end of turn.

Exile target instant or sorcery card from your graveyard and target instant or sorcery card from an opponent's graveyard. Copy those cards. Cast the copies if able without paying their mana costs. Exile Spelltwine.

Whenever you cast an instant or sorcery spell, you may put a charge counter on Sphinx-Bone Wand. If you do, Sphinx-Bone Wand deals damage equal to the number of charge counters on it to any target.

Flying

Sacrifice Spiketail Drake: Counter target spell unless its controller pays {3}.

Flying

Sacrifice Spiketail Drakeling: Counter target spell unless its controller pays {2}.

Flying (This creature can't be blocked except by creatures with flying or reach.)

Sacrifice Spiketail Hatchling: Counter target spell unless its controller pays {1}.

Whenever you cast a blue spell or an Island enters the battlefield under your control, you gain 1 life.

Create a token that's a copy of target artifact or creature.

Cipher (Then you may exile this spell card encoded on a creature you control. Whenever that creature deals combat damage to a player, its controller may cast a copy of the encoded card without paying its mana cost.)

At the beginning of your upkeep, sacrifice Sunken City unless you pay {U}{U}.

Blue creatures get +1/+1.

Whenever you cast an instant or sorcery spell, you may copy that spell. You may choose new targets for the copy.

Target opponent reveals the top seven cards of their library. You may cast an instant or sorcery spell from among them without paying its mana cost. Then that player puts the rest into their graveyard.

Spell mastery -- If there are two or more instant and/or sorcery cards in your graveyard, you may cast up to two instant and/or sorcery spells from among the revealed cards instead of one.

Whenever you cast an instant or sorcery spell, create a 2/2 blue Drake creature token with flying.

Exile target permanent you control. Return that card to the battlefield under its owner's control at the beginning of the next end step. If it enters the battlefield as a creature, it enters with an additional +1/+1 counter on it.

Draw three cards. Then discard two cards unless you discard a basic land card.

Flying

Whenever you cast your second spell each turn, put a +1/+1 counter on Thunder Drake.

Flying

Whenever you attack with two or more creatures with flying, draw a card.

Flash

When Torrential Gearhulk enters the battlefield, you may cast target instant card from your graveyard without paying its mana cost. If that spell would be put into your graveyard, exile it instead.

Whenever you cast an instant or sorcery spell, investigate. (Create a Clue token. It's an artifact with "{2}, Sacrifice this artifact: Draw a card.")

Flying

Trawler Drake enters the battlefield with an oil counter on it.

Trawler Drake gets +1/+1 for each oil counter on it.

Whenever you cast a noncreature spell, put an oil counter on Trawler Drake.

Each player draws two cards.

Return all permanents of the color of your choice to their owners' hands.

Whenever you cast your first spell during each opponent's turn, draw a card.

Whenever you cast a noncreature spell, create a 1/1 white Spirit creature token with flying. This ability triggers only once each turn.

Flying

Whenever you cast an instant, sorcery, or Wizard spell, you may draw a card. If you do, discard a card.

Flying

Other creatures you control with flying get +1/+0.

This spell costs {1} less to cast if you control a creature with flying.

Draw two cards.

Myriad (Whenever this creature attacks, for each opponent other than defending player, you may create a token that's a copy of this creature that's tapped and attacking that player or a planeswalker they control. Exile the tokens at end of combat.)

Instant and sorcery spells you cast cost {1} less to cast.

You may cast sorcery spells as though they had flash.

You draw two cards, then each other player draws a card.

Target opponent gains control of target creature. (If an attacking or blocking creature changes controllers, it's removed from combat.)